A42Y-C型適用于工作溫度≤300℃空氣、石油氣、液體等介質的設備和管路上。A42Y-P型及A42Y-R型適用于工作溫度≤200℃有腐蝕性的介質的設備和管路上，作為超壓保護裝置。 連接法蘭標準按JB/T……-94系列1。≥6.4MPa按JB/T……-94系列2。
主要零部件材料
|
NO. |
零件名稱 |
A42Y-C |
A42Y-P |
A42Y-R |
DA42Y-P |
|
1 |
閥座 |
2Cr13/1Cr18Ni9Ti |
ZG1Cr18Ni9Ti |
ZG1Cr18Ni12Mo2Ti |
ZG1Cr18Ni9Ti |
|
2 |
閥體 |
WCB |
ZG1Cr18Ni9Ti |
ZG1Cr18Ni12Mo2Ti |
LCB/ZG1Cr18Ni9Ti |
|
3 |
調節圈 |
2Cr13/1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
1Cr18Ni9Ti |
|
4 |
反沖盤 |
2Cr13/1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
1Cr18Ni9Ti |
|
5 |
閥瓣 |
2Cr13/1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
1Cr18Ni9Ti |
|
6 |
導向套 |
2Cr13/1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
1Cr18Ni9Ti |
|
7 |
閥蓋 |
ZG230-450 |
ZG230-450 |
ZG230-450 |
ZG1Cr18Ni9Ti |
|
8 |
彈簧 |
50CrVA |
50CrVA包覆氟塑料 |
50CrVA包覆氟塑料 |
50CrVA |
|
9 |
閥桿 |
2Cr13 |
1Cr18Ni9Ti/1Cr18Ni12Mo2Ti |
1Cr18Ni9Ti/1Cr18Ni12Mo2Ti |
1Cr18Ni9Ti |
|
10 |
調整螺桿 |
45 |
2Cr13 |
2Cr13 |
2Cr13 |
|
11 |
閥帽 |
ZG200-400 |
ZG200-400 |
ZG200-400 |
ZG230-450 |
|
|
密封面材料 |
堆焊Co基硬質合金 |
|||
外形尺寸和連接尺寸
|
公稱壓力 |
公稱通徑 |
尺寸（mm） |
|||
|
do |
L |
L1 |
DN′ |
||
|
1.6 2.5 4.0 |
20 |
10 |
95 |
85 |
25 |
|
25 |
15 |
110 |
95 |
32 |
|
|
32 |
20 |
115 |
100 |
40 |
|
|
40 |
25 |
120 |
110 |
50 |
|
|
50 |
32 |
135 |
120 |
65 |
|
|
65 |
40 |
160 |
125 |
80 |
|
|
80 |
50 |
170 |
135 |
100 |
|
|
100 |
65 |
195 |
175 |
150 |
|
|
125 |
80 |
210 |
190 |
150 |
|
|
150 |
100 |
250 |
210 |
200 |
|
|
200 |
125 |
305 |
260 |
250 |
|
|
250 |
150 |
350 |
320 |
300 |
|
|
300 |
200 |
370 |
350 |
400 |
|
|
350 |
250 |
500 |
450 |
500 |
|
|
400 |
300 |
500 |
450 |
500 |
|
|
500 |
350 |
550 |
500 |
600 |
|